1、suspect

猜想;觉得

I suspect they were right.

我感觉他们是对的。

The above complaints are, I suspect, just the tip of the iceberg.

我想，以上的抱怨只是冰山一角。

怀疑;疑心

He suspected that the woman staying in the flat above was using heroin.

他怀疑楼上公寓里的那个女人正在吸食海洛因。

Police said they suspected that Sobhraj had accomplices who are drug smugglers.

警方说他们怀疑索布拉还有一些走私毒品的同伙。

不可靠的;不可信的;可能有假的;可疑的

Delegates evacuated the building when a suspect package was found.

发现可疑包裹后，代表们撤离了这座楼。

The firm has taken out adverts in national newspapers to urge customers to return suspect products.

该公司在全国性的报纸上登出广告，催促顾客退回疑似假冒产品。

2、go back

追溯到；回溯到

The feud with the Catholics goes back to the 11th century.

与天主教的夙怨可以追溯到11世纪。

Our association with him goes back four years.

我们同他的合作是从4年前开始的。

回到（过去）；回顾

If you go back to 1960, you'll find that very few jobs were being created.

如果回到1960年，你会发现工作机会寥寥无几。